// Copyright (c) 2017, Bosch Software Innovations GmbH.
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are met:
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//      notice, this list of conditions and the following disclaimer.
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//    * Redistributions in binary form must reproduce the above copyright
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#include <gmock/gmock.h>

#include <memory>
#include <string>
#include <utility>

#include "rviz_common/visualizer_app.hpp"
#include "rviz_common/ros_integration/ros_client_abstraction_iface.hpp"

class MockRosNodeStorage : public rviz_common::ros_integration::RosClientAbstractionIface
{
public:
  MOCK_METHOD4(
    init,
    rviz_common::ros_integration::RosNodeAbstractionIface::WeakPtr(
      int argc, char ** argv, const std::string & name, bool anonymous_name));
  MOCK_METHOD0(ok, bool());
  MOCK_METHOD0(shutdown, void());
};

TEST(VisualizerApp, shutdownsRosDuringExit) {
  std::unique_ptr<rviz_common::ros_integration::RosClientAbstractionIface> ros_client =
    std::make_unique<MockRosNodeStorage>();
  EXPECT_CALL(*dynamic_cast<MockRosNodeStorage *>(ros_client.get()), shutdown()).Times(1);

  {
    rviz_common::VisualizerApp visualizer_app(std::move(ros_client));
  }
}

TEST(VisualizerApp, handlesEmptyFrameDuringExit) {
  std::unique_ptr<rviz_common::ros_integration::RosClientAbstractionIface> ros_client =
    std::make_unique<MockRosNodeStorage>();
  EXPECT_CALL(*dynamic_cast<MockRosNodeStorage *>(ros_client.get()), shutdown()).Times(1);
  rviz_common::VisualizerApp visualizer_app(std::move(ros_client));
  // Simulate that frame_ is nullptr during exit, ensuring no crash occurs
  EXPECT_EQ(nullptr, visualizer_app.getRenderWindow());
}
